object Test extends App {
  import collection.mutable.ListBuffer

  def newLB = ListBuffer("a", "b", "c", "d", "e")

  def iiobe[A](f: => A) =
    try { f }
    catch { case ex: IndexOutOfBoundsException => println(ex) }

  val lb0 = newLB
  iiobe( lb0.insert(-1, "x") )

  val lb1 = newLB
  iiobe( lb1.insertAll(-2, Array("x", "y", "z")) )

  val lb2 = newLB
  iiobe( lb2.update(-3, "u") )

  val lb3 = newLB
  iiobe( lb3.update(-1, "u") )
  iiobe( lb3.update(5, "u") )
}
